"It feels good to know how to defend yourself, and everyone should have the right to learn. Stockholm is a very safe city to live in, but life is life," says Jo Hall, who runs a training studio, Good to Go, in the Swedish capital. READ

"Since Sweden is one of the most gender-equal countries in the world, we were hoping that maybe our 15-year-old girls would have moved past these stereotypes, but they're still alive and kicking!" READ